Improvement in locking-gear for windlasses



G. H. REMINGTON & J.- P. MANTON.

LOCKING GEAR FOR WINDLASSES.

Patented March 21,1876.

WITNESSES.

INVENTORS.

N.PETER4$. PHT0-UTHOGRAPHER, WASHINGTON- D. C.

- shown made in two parts.

UNITED STATES PATENT GEORGE H. REMINGTON AND JOSEPH P. MANTON, OF PROVIDENCE, R. I.

'IMF ROVEMENT IN LOCKING-GEAR FOR WINDLASSES.

Specification forming part of Letters Patent No. I 74.977, dated March 21, 1876; application filed November 19, 1875.

To all whom it may concern Be it known that we, GEORGE E. REMING- TON and JOSEPH P. MANTON, both of the city and county of Providence, State of Rhode Island, have invented new and useful Improvements in Locking-Gear for Wiudlasses; and we do hereby declare that the following is a clear, full, and exact description of the same, which will enable others skilled in. the art to make and use the same, reference being had to the accompanying drawing, forming part of this specification.

Figure 1 is a longitudinal section through the center. Fig. 2 is an end view, partly in section. Fig. 3 is a front view of the lockingring. Fig. 4 is a side view of the locking-ring. Fig. 5 shows a section of the locking-ring in an unlocked position. Fig. 6 shows a partial end view, also partly in section, showing the wild-cat unlocked from the Windlass-head. Fig. 7 shows the locking-pawl.

Similar letters of reference indicate correponding parts.

This invention relates to a new method for connecting and disconnecting the several parts of a capstan or Windlass, so that they may be connected to revolve with the shaft, or be free to revolve without reference to the shaft or other part of the capstan or windlass. It consists in the application of a ring, having two or more grooves or slots, into which a pin secured to the locking-pawl enters, so that by turning the ring on the Windlass or capstan head, the locking-pawls are either raised and brought in contact with the part to be locked or depressed, and thus relieve the pawls, and allow the part to turn freely on the shaft.

In the drawings, a is the ring, which is b is the Windlasshead, secured to the shaft. On this head the ring is supported, and on it the same may be turned. 0 is the chain-wheel or wild-cat, turning loose on the shaft. The projecting rim of the wild-cat, for receiving the band of the friction-brake, has ratchet-shaped thrust' blocks cast on its inner side, against which the pawls bear when the wild-cat is secured to the Windlass-head, and is thus locked to the same, and will turn with the shaft, as is shown in Fig. 2. d is the main shaft, to which power is applied, and to which the Windlass-head b is secured, while the wild-cat is loose on the same, and may turn freely in paying out, being controlled by the frictionbrake. e e are the curved slots in the locking-ring, in which the pins secured to the pawls slide. These slots are made so that when the locking-ring turns in one direction the pawls will be raised or moved further from the center, and if turned in the opposite direction the pawls will be released and brought nearer the center, as shown in Fig. 6.

In the drawings, three slots, 6 e0, are shown, curved in the same direction. -Instead of this arrangement, four slots may be made in ring, two curved in one and two in the opposite direction. The locking-ring a may then be placed between two loose parts of a capstan or Windlass, so that when -the locking-ring is turned in one direction, one part is locked to and the other part released from the capstan or Windlass head, and when turned in the opposite direction the reverse is the result.

When the locking-ring is turned in either direction, one part is locked to and. the other released from the windla-ss'head and main driving-shaft.

f is a hand'spike, inserted when used into socket-holes provided in the periphery of the locking-ring a, and by which the ring is turned, and the parts locked or unlocked. g is one of the pawls, and h the pin entering the slot 6.

The operation is as follows: The shaft d turning in the direction of the arrow in Fig. 2 to secure the wild-cat to the windlasshead, the locking-ring a is turned in the opposite direction, and the pin it passing in the slot e, and secured to one end of the pawl g, the latter is raised, and engages with the abut- 'ment of the wild-cat, as shown in Fig. 2.

When, on the contrary, the wild-cat is to be released, the rib g a. is turned in the opposite direction, and the pawl returns to its recess, as is shown in Fig. 6.

Having thus (iescribed our invention, we stantiallqy as and fbr thepurpose henein set claim asnew and desire to secure by Letters forth. Petent-- The arrangement, substantially as described, REMINGTON by which the wild cat is connected with and JOSEPH P. MANTON. disconnected from the Windlass or capstan- Witnesses: head by means of locking-keys, operated si- JOSEPH A. MILLER, multaneously by alever or its equivalent, sub- 0. E. LAPHAM. 

